West Anglia Main Line
West Anglia Main Line Greater Anglia 379021 at Bethnal Green in 2012 Overview Type Commuter rail, Suburban rail System National Rail Status Operational Locale Greater London East of England Termini Liverpool Street, London Cambridge Stations 28 Operation Owner Network Rail Operator(s) Greater Anglia (Stansted Express) CrossCountry Rolling stock Class 170 "Turbostar" Class 317 Class 379 "Electrostar" Technical Number of tracks 2–4 Track gauge 1,435 mm ( 4 ft 8 1 ⁄ 2 in ) standard gauge Electrification 25 kV 50 Hz AC OHLE Operating speed 100 mph (160 km/h) maximum .mw-parser-output .RMbox{box-shadow:0 2px 2px 0 rgba(0,0,0,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(0,0,0,.2)}.mw-parser-output .RMinline{float:none;width:100%;margin:0;border:none}.mw-parser-output table.routemap{padding:0;border:0;border-spacing:0;background:transparent;white-space:nowrap;line-height:1.2;